Check for picker sticks



M y 3 J.W. JQNES 2,319 8 CHECK FOR PICKER STICKS Filed 'Sept. 24, 1942Patented May 18, 1943 UNITED CHECK FOR PICKER STICKS John W. Jones,Greenville, S. 0., assignor to Harriett K. Bellwood, Greenville, S. 0.

Application September 24, 1942, Serial N 0. 459,549

7 Claims.

My invention relates to looms and has particular reference to checks forpickersticks.

An important object of the invention is to provide a device of the abovementioned character which is arranged adjacent to the oscillating stand,and which will check the movement of the picker stick in oppositedirections.

A further object of the invention is to P vide a checking device of theabove mentioned character having parts which are mounted upon the shoeand oscillating stand of the conventional loom without altering theconstruction of the same.

A further object of the invention is to provide a device of the abovementioned character which will dispense with the use of the ordinaryspring actuated drum to return the picker stick to the outer position.

A further object of the invention is to provide a checking device forthe picker. stick which is simple in construction and durable anddispenses with the use of the conventional picker stick check'strap.

A further object of the invention is to provide a device of the abovementioned character, which is adjustable to regulate the checking actionupon the picker stick and the yielding action which returns the pickerstick to the outer position.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawing forming a part of this application and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 is a side elevation of a picker stick check embodying myinvention, showing the same in use, and the picker stick in theintermediate or vertical position,

Figure 2 is a similar view, parts broken away. showing the picker stickin the outer inclined position,

Figure 3 is an exploded perspective view of the unit which is mountedupon the oscillating stand,

Figure 4 is a transverse section taken on line l4 of Figure 2,

Figure 5 is a perspective view of theupper unit which is mounted uponthe shoe,

Figure 6 is a side elevation of the upper unit showing the relativeposition between, the same and the bumpers when the picker stick is inthe-outer inclined position,

- Figure 7 is a similar view showing such rela' tive position when thepicker stick is in the intermediate or vertical position, and,

Figure 8 is a similar view showing the relative position when the pickerstick is in the inner inclined position.

In the drawing, wherein for the purpose of illustration is shown apreferred embodiment of my invention, the numeral Ill designates a loomframe, carrying the lay rock shaft ll. Rigidly mounted upon the rockshaft H is an oscillating stand l2, having a shoe l3 mounted thereon inthe usual manner. The shoe l3 oscillates with the stand l2 and alsorocks longitudinally of the stand as is customary. As more clearly shownin Figure 4, the stand l2 has a depending arm or bracket I4, formedintegral therewith and positioned at one longitudinal edge of the stand.The shoe I3 is provided with the usual opening for receiving the lowerend of a picker stick I5, secured to the shoe by a heel bolt l6, passingthrough a cap H and the shank l8 of-the shoe. The shank l8 also hasscrew-threaded engagement with an adjusting screw [9, engaging aparallel-tongue 20. The set-screw l9 has a lock-knot 2|. By manipulatingthe bolt l6 and setscrew [9 the picker stick l5 may be angularlyadjusted with relation to the shoe I3. The picker stick I5 is throwninwardly by suitable means shown at 22'. The construction thus shown anddescribed is that of the conventional loom.

My improved picker stick check includes a lower unit comprisingsubstantially horizontal preferably rigid straps 22 and 23, arrangedbeneath the oscillating stand l2 and extending substantially paralleltherewith. These straps are preferably formed of metal and their innerends overlap and are provided with longitudinal slots 2 At their outerends the straps 22 and 23 carry upstanding ears or extensions 25, inturn carrying bolts 26. These bolts pass through openings formed inbumpers 21, which are preferably cylindrical. The bumpers 21 arepreferably iormed of leather or other fibrous material and the bolts 26have screw threaded ends to engage within screw threaded openings 28formed in cars 25. By adjusting the bolts 25 the bumpers may be turnedupon the bolts to compensate the wear and subsequently again clamped tothe ears. The numeral 21' designates a substantially horizontal supportplate arranged beneath the oscillating stand and above the straps 22 and23. This plate is preferably formed of metal and is preferably rigid.The plate 2! has a lateral extension 28' carrying a depending arm 29,provided with an opening 30 near its lower end. The plate 21 has anopening 3|, to receive a bolt 32, passing through the slots 24, andcarrying a nut 33. By adjusting the bolt 32 the straps 22 and 23 may beadjusted longitudinally of the plate 2'! and clamped thereto in theselected adjusted position. In this manner the distance between thebumpers 2'! may be varied. The plate 27 is also provided with alongitudinal slot 34.

The lower unit is rigidly attached to the oscillating stand |2, and toeffect this attachment the depending arm 29 is placed upon the innerface of the depending arm M, and these parts are clamped together by abolt 35, passing through the opening 3|! and an opening 36 in the arm M.The usual spring operated drum which returns the picker stick to theouter position is omitted with its bolt or attaching means which enteredthe opening 36.

The numeral 31 designates a hook, the upper end of which is screwthreaded and passes through the longitudinal slot 34 and carries nuts35, above and below the plate 21. A heel-strap 39 is secured to thelower end of the picker stick and is connected with a pull-spring 49,the opposite end of which is connected with the hook 31. The spring 4|)and heel-strap 3 9 swing the picker stick to the outer inclinedposition, The tension of the pull-spring 49 may be regulated byadjusting the hook 3,1 longitudinally of the plate 21.

It is thus apparent that the lower unit is mounted upon the oscillatingstand without in anyway altering the construction of the stand.

The upper unit of the device comprises an in vertedV-shaped holder orhead 4|, which is prefe1 'ab1y rigid and preferably formed of metal.This holder has an attaching plate 42 rigidly securedthereto at itsapex, The plate 42 has uppeer and lower openings 43 and 44. The upperopening 43 receives the set-screw l9 while the lower'opening 44 receivesthe bolt 6. The holder 4| is providednear its lower ends with inwardlyfacing bolts 45, rigidly secured thereto by any suitable means. Thesebolts 45 pass through longitudinalslots 46 formed in preferably rigidarms 41, These arms are disposed inwardly of the holder 4 |w and divergedownwardly and their up. per ends are slightly bent laterally, as shownat 41, to permit of a proper swinging action of the arms 41 upon thebolts 45, The inner or upper ends of the arms .1 contact with a wall 48included in the head or holder 4| to prevent displacement of the, arms41, The inner ends of the bolts 45 are screw-threaded for receiving nuts49, engaging springs carried by the bolts 45. It is thus apparent thatthe arms 47 will swing upon the bolts 45. in the plane of the holder 4|,but not at a right angle to this plane. The tension of the springs 59may be regulated by adlusting the, nuts 49.

It is thus. apparent that the upper unit is mounted upon the shoe l3without altering the construction of the shoe.

When the lower unit is assembled upon the os cillating stand and theupper unit mounted upon the shoe, the downwardly diverging arms 4! arearranged between and contact with the bump-. ers 27. When the pickerstick is swung to the outer inclined position the arm 4'! to the right,Figures 2 and 6, compresses its engaging, spring 50, thus checking theoutward movement of the picker stick. When the picker stick is in the.intermediate. or vertical position, Figures 1 and 4,

the arms 4| engage the bumpers but do not compress the springs and hencethere is little, if any, stopping or checking action exerted upon thepicker stick. When the picker stick is swung to the inner inclinedposition, the arm 41 to the left, Figure 8, compresses its engagingspring and a checking action is exerted upon the picker stick.Ordinarily the device will exert a greater checking action upon thepicker stick upon the inward swinging movement of the picker stick thanupon its outward swinging movement. It exerts a checking action upon thepicker stick when swinging in both directions. By adjusting the nuts 48the degree of checking action in either or both directions of themovement of the picker stick may be regulated or varied, as desired.

The bumpers 21 are adjustable to vary the distance between them and thisadjustment may be employed to compensate for the wear upon the bumpersor may also be employed to regulate the extent of checking action thatthe arms 4.! exert upon the picker stick.

It is to be understood that the form of my invention herewith shown anddescribed is tobe taken as a preferred example of the same, and thatvarious changes in the shape, size, and arrangement of parts may beresorted to, without departing from the spirit of my invention or thescope of the subjoined claims.

Having thus described my invention, what I claim is:

1. A picker stick check for a loom having a picker stick, a shoe securedto, the picker stick and an oscillating stand, said check including alower unit mounted upon the oscillating stand and including spacedbumpers, an upper unit mounted upon the shoe and including resilientdevices engaging the bumpers.

2, A picker stick check for a loom having a picker stick, a shoe securedto the picker stick and an oscillating stand, said check including alower unit mounted upon the oscillating stand and spaced bumpers mountedupon the lower unit, an upper unit mounted upon the shoe and including aholder, arms carried by the holder and arranged to engage the bumpers,and resilient means acting upon the arms to oppose their relativemovement with respect to the holder.

3. A picker stick check for a loom having a picker stick, a shoe securedto. the picker stick and an oscillating stand, said-check including alower unit mounted upon the stand, spaced bumperscarried by the lowerunit, an upper unit mounted upon the shoe, arms arranged to engagetheinner sides of the bumpers, means to connect the arms with the holdersothat the arms may swing with relation to the holder, and resilient meansto oppose the swinging movement of the arms.

4. A picker stick check. for a loom having a picker stick, a shoesecured to the picker stick and an oscillating stand, said checkincluding a lower unit mounted upon the stand, spaced bumperscarried bythe lower unit, an upper-unit mounted upon the shoe, arms arranged toengage the bumpers and having openings formed therein, bolts connectedwith the holder and passing through the openings in the arms, springscarried by thebolts and engaging thearms, and nuts carried by the.bolts. to engage the springs and re late their tension.-

5. A picker stick check for a loom having a picker stick, a shoe securedto the picker stick and an oscillating-stand, said check including a andan oscillating stand having an arm provided with an opening, a platearranged beneath the oscillating stand and having an arm provided withan opening, an element passing through the openings in the arms tosecure them together, straps longitudinally adjustably mounted upon theplate, bumpers mounted upon the straps, a holder mounted upon the shoe,and resilient devices carried by the holder and arranged to engage thebumpers.

7. A picker stick check for a loom having a picker stick, a shoe securedto the picker stick and an oscillating stand having an arm, a platearranged beneath the oscillating stand, means to secure the plate to thearm, straps longitudinally adjustaloly mounted upon the plate, burnplersmounted upon the straps, a holder mounted upon the shoe, resilientdevices carried by the holder and arranged to engage the bumpers, andelements secured to the plate, and resillient means connected with thepicker stick to swing the same outwardly and connected with saidelement.

' JOHN W. JONES.

